Window-ventilator.



No. 718,140. P ENTED JAN. 13, 1903.

" N. M. MILLER.

WINDOW VENTILATOR.

APPLICATION FILED MAY 11, 1901.

10 MODEL.

WITNE SES dent of Philadelphia, in the county of Philaand combinations and arrangements of parts,

ventilator removed. Fig. 3 is a view in ver- Nirn STATES ATENT OFFICE.

WINDOW-VENTILATQR.

SPECIFICATION forming part of Letters Patent No..718,1'40, dated January 13 1903.

Application filed May 11, 1901.

To a, whom it may concern: Be it known that LNILEs M. M1LLER,a res-idelphia and State of Pennsylvania, have invented certain new and useful'Impr-ovements in Window-Ventilators, and I do hereby de clare the following to be a full, clear, and exact description of the invention, such as will enable others .skilled in the art to which it appertains to make and use the same. My invention relates to an improvement in I window-ventilators, the object of the invention being to provide a device of this character which can be easily and quickly placed in position in a Window or removed therefrom andwhich will be so constructed as to require no additional means save the ordinary construction of window-frame to support it in position and which will permit the raising or lowering of the sash to regulate the supply of air to the room, at the same. time preventing the entrance of rain or snow and so directing or deflecting the air into the room and upward as to accomplish the best possible results.

With this object in view the invention consists in certain novel features of construction as Willbe more fully hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view illustrating my improvements in position in a window. Fig. 2 is a view'of the tical section of Fig. 1 and Fig. 4 is a View in horizontal'section of Fig. 1 looking down on the ventilator.

1 2 represent the two telescoping members of my improved ventilator, both of which are preferably stamped from single pieces of sheet metal, forming triangular ends 3 and vertical flanges along their vertical inner edges, and wire-strengthening ribs 5 are provided on the upper edges of the member 1 and on the upper edge of end section -3 of member 2, the latter having its upper edge of the main portion bent longitudinally into an open tube 6 to receive the wire-ribbed upper edge of memberl and permit the members to telescope one upon the other.

The lower edge of member 2 is bent into a vertical flange 7, and the member 1 is made Serial No. 59,767. (No niodel.)

with an overlapping lip 8 to receive the flange 7 and telescope thereon, suitable handles 9 being provided at the ends of the members 1 and 2 to facilitate the adjustment of the ventilator to fit windows of different sizes or to remove or replace it.

In operation the lower flanged portion 7 of member 2 and theoverlapping lip 8 of memdrawal.

With'my improvements it will be seen that as the main or front portion thereof is disposed at an angle (the particular angle being immaterial, a great many modifications being permitted) the air strikes against the same and is deflected upward and inward toward the center of the room, thereby throw- 8o ing the air where it is most neededto accomplish the best results. Also by so inclining the front or main portion of the ventilator and having its lower edge located behind the sill any water'or snow which might be driven against the ventilator will be carried down and out the window and not find its wayinto the room.

The ventilator may be ornamented in many ways, and various slight changes might be resorted to in the general form and arrangement of theseveral partsdescribed without departing from the spirit and scope of my i invention, and hence I would have it understood that I do not wish to limit myself to the precise details set forth, but consider myself at liberty to make such slight changes, and alterations as fairly fall within the spirit and scope of my-invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A window-ventilator eomprisinga structure closed at its ends and inner side, and

open at its top, the outer side of said structure being open from the top to the bottom thereof, and thin flanges projecting laterally from the ends of the structure in line with the open side thereof and adapted to enter between the sash and bead of a window.

2. A window-ventilator open on its outer side from top to bottom thereof, said venti lator comprising triangular ends, an inclined front side meeting the open side at the bottom of the ventilator, and thin flanges projecting laterally from the ends of the ventilator in line with the open outer side thereof and adapted to enter between the sash and bead of a window to hold the device in place and permit the sash to be raised and lowered independently thereof.

3. A ventilator open on its outer side from top to bottom and comprising two telescoping members, thin flanges projecting laterally from the outer ends of said members to fit between the beads of the window-frame and the sash to hold the device in place and permit the sash to be raised and lowered indeand an upturned lip on the lower edge of the other member to receive said depending flange, said lip and flange adapted to engage the sill out of line with the path of the sash. In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

NILES M. MILLER.

Witnesses:

J NO. J. RIDGWAY, DAVID N. FELL, J r. 

